EP1633657B1 - Metering valve for dispensing a fluid product - Google Patents
Metering valve for dispensing a fluid product Download PDFInfo
- Publication number
- EP1633657B1 EP1633657B1 EP04742690A EP04742690A EP1633657B1 EP 1633657 B1 EP1633657 B1 EP 1633657B1 EP 04742690 A EP04742690 A EP 04742690A EP 04742690 A EP04742690 A EP 04742690A EP 1633657 B1 EP1633657 B1 EP 1633657B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- chamber
- metering
- metering chamber
- rest position
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 title claims description 32
- 238000009826 distribution Methods 0.000 description 7
- 238000003860 storage Methods 0.000 description 7
- 239000002775 capsule Substances 0.000 description 6
- 239000003380 propellant Substances 0.000 description 6
- 238000002788 crimping Methods 0.000 description 5
- 230000000284 resting effect Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
- B65D83/44—Valves specially adapted therefor; Regulating devices
- B65D83/52—Valves specially adapted therefor; Regulating devices for metering
- B65D83/54—Metering valves ; Metering valve assemblies
Definitions
- the present invention relates to a metering valve and a fluid dispenser device comprising such a valve.
- Metering valves are well known in the state of the art, in particular for dispensing fluid, liquid or powdery products.
- the product is generally associated with a propellant and the actuation of the valve allows the dispensing of a dose of product by means of said propellant.
- the metering valves generally comprise a valve body defining a metering chamber, the valve sliding in said metering chamber between a rest position and a dispensing position. In the rest position of the valve, the latter is not connected with inside the metering chamber, and the metering chamber is connected with the reservoir so that it can be filled, generally by gravity, with the fluid and the propellant, to define the dose of product to be dispensed when next operation.
- valve When the valve is actuated, the valve is depressed into the valve body, and the passage between the metering chamber and the reservoir is closed. Then, when the valve reaches its dispensing position, the dosing chamber is connected to the dispensing orifice of the valve, allowing the dose of product contained in the dosing chamber to be expelled through the dispensing orifice. distribution of the valve.
- the user releases its pressure on the valve, it is automatically returned to its rest position by a return spring, and during this operation, the metering chamber fills again with the fluid and the propellant, generally by gravity when the valve is a valve used in the inverted position, that is to say with the valve disposed under the reservoir.
- the metering chamber is therefore at the same pressure as the reservoir in the rest position of the valve, since it is connected directly therewith.
- the valve generally comprises internal channels of complex shapes, for example in the form of a siphon, but because of the pressure existing in the chamber dosing, the maintenance of the dose, and therefore the precision of the dosage are not absolutely guaranteed.
- the return spring of the valve is disposed in the body of the valve, generally at the passage connecting the metering chamber or reservoir.
- the spring is in contact with the fluid and the propellant. Depending on the material of the spring (usually metal) and the nature of the fluid product, this may cause an alteration of said fluid product.
- the present invention aims to provide a metering valve that does not reproduce the aforementioned drawbacks.
- the object of the present invention is to provide a metering valve which guarantees an absolute dosing precision with each actuation of the valve, as well as a total dose reproducibility at each actuation.
- the present invention also aims to provide such a metering valve in which the accuracy of the dosage and the reproducibility of the dose is independent of the duration of the storage time of the valve between two actuations.
- the present invention also aims to provide such a valve avoiding any risk of alteration of the fluid, including in case of prolonged storage.
- the present invention also aims to provide such a metering valve that is simple and inexpensive to manufacture and assemble, and reliable use.
- the subject of the present invention is therefore a fluid dispensing metering valve comprising a valve body and a valve sliding relative to said valve body between a rest position and a dispensing position, said valve comprising a metering chamber intended to to contain the dose of product expelled at each actuation, arranged in such a way that rest position of the valve, said metering chamber is at atmospheric pressure, characterized in that the valve comprises a filling chamber connected on the one hand to a fluid reservoir and on the other hand to said metering chamber, the passage between the metering chamber and the filling chamber being closed in the rest position and in the dispensing position of the valve, said passage being open when the valve moves between its resting and dispensing positions.
- said filling chamber is connected to said fluid reservoir in the rest position of the valve, the passage between the filling chamber and the reservoir being closed when the valve is not in the rest position.
- the metering chamber fills when the valve moves from its rest position to its dispensing position.
- said valve comprises a connecting channel comprising an inlet and an outlet offset axially with respect to said inlet, said connecting channel being entirely in the dosing chamber in the rest position, entirely in the filling chamber in the dispensing position, and connecting said metering chamber to said filling chamber when the valve is between its resting and dispensing positions, said inlet then being disposed in the filling chamber and said outlet being disposed in said metering chamber.
- the product contained in the metering chamber is expelled when the valve arrives in its dispensing position.
- a spring urges the valve towards its rest position, said spring being disposed out of contact with said fluid product.
- the valve body comprises a spring chamber isolated from any contact with the fluid, the valve passing through said spring chamber, the spring being disposed in said spring chamber around said valve.
- the valve comprises a central expulsion channel connecting the dispensing orifice of the valve to an opening opening in the metering chamber in dispensing position of the valve, said opening being isolated from said metering chamber when the valve is not in distribution position.
- the valve body comprises a spring chamber, a metering chamber, and a filling chamber, the spring chamber being separated from the metering chamber by a first transverse wall, the metering chamber being separated from the metering chamber. filling by a second transverse wall, and the filler chamber being separated from the reservoir by a third transverse wall, said valve sliding through said spring chambers, metering and filling between its resting and filling positions, passing through sealing said first, second and third transverse walls.
- the present invention also relates to a fluid dispenser device comprising a metering valve as described above.
- a metering valve comprising a valve body 10.
- This valve is assembled on a reservoir (not shown), which contains fluid, for example liquid or powder, generally associated with propellant gas intended for allow the distribution of the product to through said valve.
- the valve body 10 can be assembled on said reservoir (not shown) by means of a fixing ring or capsule, in particular a crimping capsule 5, preferably with a valve seal 6 interposed between the valve body 10 and said crimping capsule 5, and a neck seal (not shown), between the neck of the reservoir (not shown), and said crimping capsule 5.
- the valve body 10 has a thicker end edge 7 intended to be fixed in said crimping capsule 5.
- valve body 10 may be associated with a filling ring (not shown) intended to at least partially fill the dead volume between the neck of the reservoir and the crimping capsule 5, and / or to limit the contact between the product t fluid and the valve seal 6.
- the valve body 10 comprises a metering chamber 11 intended to contain a dose of fluid, this dose of product being dispensed with each actuation of the valve.
- this metering chamber 11 is at atmospheric pressure, when the valve is in the rest position.
- the metering chamber 11 is isolated from the fluid reservoir in the rest position of the valve, so that no overpressure is exerted on the seals defining said metering chamber 11 during storage, and so that there is no risk that the dose of product is decreased because of prolonged storage, since during this storage, the metering chamber 11 is empty and contains no fluid.
- the metering chamber 11 fills only when the valve 20, which slides in the valve body 10, is moved from its rest position (shown in FIG. figure 1 ) to its dispensing position (shown on the figure 3 ).
- the filling of the metering chamber 11 is between said resting and filling positions, in the intermediate position shown in FIG. figure 2 .
- the valve 20 comprises a connecting channel 15 forming a passage between the metering chamber 11 and a filling chamber 12 provided in the valve body 10.
- This connecting channel is closed in the rest position of the valve, in which it is arranged entirely in the metering chamber 11.
- this channel 15 is closed in dispensing position of the valve, in which it is arranged entirely in the filling chamber 12.
- this connecting channel 15 connects the filling chamber 12 to the metering chamber 11.
- this connecting channel 15 may comprise an inlet 15a and an outlet 15b, said inlet 15a being disposed in the chamber of filling 12 and said outlet 15b being disposed in the metering chamber 11, in said intermediate position of the valve.
- the filling chamber 12 is connected to the reservoir (not shown) in the rest position of the valve.
- the valve 20 is actuated and is thus moved axially inside the valve body, the passage 16 between the filling chamber 12 and the reservoir is closed, thus isolating said filling chamber 12 from said tank.
- the volume of the filling chamber 12 corresponds to the volume of the metering chamber 11, so that when the valve passes into the intermediate position, the entire filling chamber 12 is emptied into the metering chamber 11, through the connecting channel 15.
- the valve 20 comprises an axial expulsion channel 21 opening into a dispensing orifice 22, said expulsion channel 21 having an inlet orifice 23.
- This inlet orifice 23, which is generally radial, is provided for open into the metering chamber 11 in dispensing position of the valve. This means that the dose of product contained in the metering chamber 11 is expelled through the valve 20 when it arrives in distribution position, which is represented on the figure 3 , and which corresponds to the depressed position of the valve 20 inside the valve body 10.
- the connecting channel 15 returns to the intermediate position in which it connects the filling chamber 12 to the metering chamber 11.
- the filling chamber 12 is empty and is isolated from the reservoir, as is the metering chamber 11, so that this passage causes no change in the state of these two chambers, and in particular does not fill the metering chamber 11.
- the metering chamber 11 is always at atmospheric pressure, as after dose distribution during the previous actuation.
- the metering chamber 11 is therefore at atmospheric pressure in the rest position of the valve.
- the filling chamber 12 is again connected to the tank (not shown) through the passage 16, which allows filling of this filling chamber 12, in particular by gravity when the valve is used in the inverted position.
- the valve body 10 also comprises a spring chamber 13 in which is disposed the spring 25 which urges the valve 20 towards its rest position.
- this spring 25 is disposed out of contact with the fluid, as shown in the figures.
- the spring chamber 13 is disposed in the valve body 10 being sealed from the metering chamber 11, the valve sealingly sliding in said spring chamber 13, and the spring 25 being arranged around said valve 20 in this spring chamber 13.
- the spring chamber 13 is separated from the metering chamber 11 by a first transverse wall 31, preferably associated with a seal against which slides said valve 20 tightly.
- said metering chamber 11 is sealed from the filling chamber 12 by a second transverse wall 32, also preferably associated with a seal against which said valve 20 slides waterproof.
- the filling chamber 12 can also be advantageously separated from the reservoir (not shown) by a third transverse wall 33, also preferably associated with a seal against which said valve 20 slides in a sealed manner.
- a third transverse wall 33 also preferably associated with a seal against which said valve 20 slides in a sealed manner.
- the only connection between the reservoir and the filling chamber 12 is formed by the passage 16, which is closed as soon as the valve 20 is no longer in the rest position.
- the only connection between the filling chamber 12 and the metering chamber 11 is achieved by means of the connecting channel 15, this connecting channel being open only in the intermediate position between the resting and dispensing positions of the valve 20.
- the metering chamber 13 is never connected to the metering chamber 11, the filling chamber 12, or the reservoir, so that the spring 25 is completely isolated from any contact with the fluid. .
- This implementation is particularly advantageous, in that it guarantees firstly that the metering chamber 11 is at atmospheric pressure in the rest position of the valve, which is particularly advantageous especially when the operating times between two actuations of the valve are relatively long, and secondly that the spring 25 is never in contact with the fluid, which avoids any risk of damage to the product due to contact with the spring, usually made of metal .
- the spring could also be arranged in the lower part of the valve body, for example in the filling chamber, to limit the number of joints. In this case, however, it would be in contact with the fluid product.
- the present invention therefore makes it possible to provide a particularly reliable metering valve, which guarantees perfect and total reproducibility of the dose at each actuation, while being of simple construction and reliable operation.
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Sliding Valves (AREA)
Description
La présente invention concerne une valve doseuse et un dispositif de distribution de produit fluide comportant une telle valve.The present invention relates to a metering valve and a fluid dispenser device comprising such a valve.
Les valves doseuses sont bien connues dans l'état de la technique, notamment pour distribuer des produits fluides, liquides ou pulvérulents. Le produit est généralement associé à un gaz propulseur et l'actionnement de la valve permet la distribution d'une dose de produit au moyen dudit gaz propulseur. Les valves doseuses comportent généralement un corps de valve définissant une chambre de dosage, la soupape coulissant dans ladite chambre de dosage entre une position de repos et une position de distribution En position de repos de la soupape, celle-ci n'est pas reliée avec l'intérieur de la chambre de dosage, et la chambre de dosage est reliée avec le réservoir de sorte qu'elle peut se remplir, généralement par gravité, avec le produit fluide et le gaz propulseur, pour définir la dose de produit à distribuer lors du prochain actionnement. Lorsque la valve est actionnée, la soupape est enfoncée dans le corps de valve, et le passage entre la chambre de dosage et le réservoir est fermé. Ensuite, lorsque la soupape parvient vers sa position de distribution, la chambre de dosage est reliée à l'orifice de distribution de la soupape, permettant l'expulsion de la dose de produit contenue dans la chambre de dosage, à travers l'orifice de distribution de la soupape. Lorsque l'utilisateur relâche sa pression sur la soupape, celle-ci est ramenée automatiquement vers sa position de repos par un ressort de rappel, et pendant cette opération, la chambre de dosage se remplit à nouveau avec le produit fluide et le gaz propulseur, généralement par gravité lorsque la valve est une valve utilisée en position inversée, c'est-à-dire avec la valve disposée sous le réservoir. Dans les valves doseuses connues, la chambre de dosage est donc à la même pression que le réservoir en position de repos de la valve, puisqu'elle est reliée directement avec celui-ci. Ceci implique des contraintes élevées sur les joints prévus au niveau de la chambre de dosage, et risque de provoquer un retour de produit vers le réservoir pendant le stockage, lorsque la valve est stockée en position droite. Pour éviter de tels retours de produit de la chambre de dosage vers le réservoir pendant le stockage en position droite de la valve, et donc une diminution de la prochaine dose, la soupape comporte généralement des canaux internes de formes complexes, par exemple sous forme de siphon, mais de par la pression existant dans la chambre de dosage, le maintien de la dose, et donc la précision du dosage ne sont pas garantis de manière absolue.Metering valves are well known in the state of the art, in particular for dispensing fluid, liquid or powdery products. The product is generally associated with a propellant and the actuation of the valve allows the dispensing of a dose of product by means of said propellant. The metering valves generally comprise a valve body defining a metering chamber, the valve sliding in said metering chamber between a rest position and a dispensing position. In the rest position of the valve, the latter is not connected with inside the metering chamber, and the metering chamber is connected with the reservoir so that it can be filled, generally by gravity, with the fluid and the propellant, to define the dose of product to be dispensed when next operation. When the valve is actuated, the valve is depressed into the valve body, and the passage between the metering chamber and the reservoir is closed. Then, when the valve reaches its dispensing position, the dosing chamber is connected to the dispensing orifice of the valve, allowing the dose of product contained in the dosing chamber to be expelled through the dispensing orifice. distribution of the valve. When the user releases its pressure on the valve, it is automatically returned to its rest position by a return spring, and during this operation, the metering chamber fills again with the fluid and the propellant, generally by gravity when the valve is a valve used in the inverted position, that is to say with the valve disposed under the reservoir. In the known metering valves, the metering chamber is therefore at the same pressure as the reservoir in the rest position of the valve, since it is connected directly therewith. This implies high stresses on the seals provided at the metering chamber, and may cause a return of product to the reservoir during storage, when the valve is stored in the upright position. To avoid such product returns from the chamber of dosing to the reservoir during storage in the upright position of the valve, and thus a decrease in the next dose, the valve generally comprises internal channels of complex shapes, for example in the form of a siphon, but because of the pressure existing in the chamber dosing, the maintenance of the dose, and therefore the precision of the dosage are not absolutely guaranteed.
Par ailleurs, dans les valves doseuses connues, le ressort de rappel de la soupape est disposé dans le corps de la valve, généralement au niveau du passage reliant la chambre de dosage ou réservoir. Le ressort est donc en contact avec le produit fluide et le gaz propulseur. Selon le matériau du ressort (généralement du métal) et la nature du produit fluide, ceci peut provoquer une altération dudit produit fluide.Furthermore, in known metering valves, the return spring of the valve is disposed in the body of the valve, generally at the passage connecting the metering chamber or reservoir. The spring is in contact with the fluid and the propellant. Depending on the material of the spring (usually metal) and the nature of the fluid product, this may cause an alteration of said fluid product.
Le brevet
La présente invention a pour but de fournir une valve doseuse qui ne reproduit pas les inconvénients susmentionnés.The present invention aims to provide a metering valve that does not reproduce the aforementioned drawbacks.
Plus particulièrement, la présente invention a pour but de fournir une valve doseuse qui garantit une précision de dosage absolue à chaque actionnement de la valve, ainsi qu'une reproductibilité de dose totale lors de chaque actionnement.More particularly, the object of the present invention is to provide a metering valve which guarantees an absolute dosing precision with each actuation of the valve, as well as a total dose reproducibility at each actuation.
La présente invention a également pour but de fournir une telle valve doseuse dans laquelle la précision du dosage et la reproductibilité de la dose est indépendante de la durée du temps de stockage de la valve entre deux actionnements.The present invention also aims to provide such a metering valve in which the accuracy of the dosage and the reproducibility of the dose is independent of the duration of the storage time of the valve between two actuations.
La présente invention a encore pour but de fournir une telle valve évitant tout risque d'altération du produit fluide, y compris en cas de stockage prolongé.The present invention also aims to provide such a valve avoiding any risk of alteration of the fluid, including in case of prolonged storage.
La présente invention a également pour but de fournir une telle valve doseuse qui soit simple et peu coûteuse à fabriquer et à assembler, et fiable d'utilisation.The present invention also aims to provide such a metering valve that is simple and inexpensive to manufacture and assemble, and reliable use.
La présente invention a donc pour objet une valve doseuse de distribution de produit fluide, comportant un corps de valve et une soupape coulissant par rapport audit corps de valve entre une position de repos et une position de distribution, ladite valve comportant une chambre de dosage destinée à contenir la dose de produit expulsée à chaque actionnement, agencée de telle sorte qu'en position de repos de la valve, ladite chambre de dosage est à pression atmosphérique, caractérisée en ce que la valve comporte une chambre de remplissage reliée d'une part à un réservoir de produit fluide et d'autre part à ladite chambre de dosage, le passage entre la chambre de dosage et la chambre de remplissage étant fermé en position de repos et en position de distribution de la valve, ledit passage étant ouvert lorsque la soupape se déplace entre ses positions de repos et de distribution.The subject of the present invention is therefore a fluid dispensing metering valve comprising a valve body and a valve sliding relative to said valve body between a rest position and a dispensing position, said valve comprising a metering chamber intended to to contain the dose of product expelled at each actuation, arranged in such a way that rest position of the valve, said metering chamber is at atmospheric pressure, characterized in that the valve comprises a filling chamber connected on the one hand to a fluid reservoir and on the other hand to said metering chamber, the passage between the metering chamber and the filling chamber being closed in the rest position and in the dispensing position of the valve, said passage being open when the valve moves between its resting and dispensing positions.
Avantageusement, ladite chambre de remplissage est reliée audit réservoir de produit fluide en position de repos de la valve, le passage entre la chambre de remplissage et le réservoir étant fermé lorsque la valve n'est pas en position de repos.Advantageously, said filling chamber is connected to said fluid reservoir in the rest position of the valve, the passage between the filling chamber and the reservoir being closed when the valve is not in the rest position.
Avantageusement, la chambre de dosage se remplit lorsque la soupape se déplace de sa position de repos vers sa position de distribution.Advantageously, the metering chamber fills when the valve moves from its rest position to its dispensing position.
Avantageusement, ladite soupape comporte un canal de liaison comportant une entrée et une sortie décalée axialement par rapport à ladite entrée, ledit canal de liaison étant entièrement dans la chambre de dosage en position de repos, entièrement dans la chambre de remplissage en position de distribution, et reliant ladite chambre de dosage à ladite chambre de remplissage lorsque la soupape est entre ses positions de repos et de distribution, ladite entrée étant alors disposée dans la chambre de remplissage et ladite sortie étant disposée dans ladite chambre de dosage.Advantageously, said valve comprises a connecting channel comprising an inlet and an outlet offset axially with respect to said inlet, said connecting channel being entirely in the dosing chamber in the rest position, entirely in the filling chamber in the dispensing position, and connecting said metering chamber to said filling chamber when the valve is between its resting and dispensing positions, said inlet then being disposed in the filling chamber and said outlet being disposed in said metering chamber.
Avantageusement, le produit contenu dans la chambre de dosage est expulsé lorsque la soupape arrive dans sa position de distribution.Advantageously, the product contained in the metering chamber is expelled when the valve arrives in its dispensing position.
Avantageusement, un ressort sollicite la soupape vers sa position de repos, ledit ressort étant disposé hors de tout contact avec ledit produit fluide.Advantageously, a spring urges the valve towards its rest position, said spring being disposed out of contact with said fluid product.
Avantageusement, le corps de valve comporte une chambre de ressort isolée de tout contact avec le produit fluide, la soupape traversant ladite chambre de ressort, le ressort étant disposé dans ladite chambre de ressort autour de ladite soupape.Advantageously, the valve body comprises a spring chamber isolated from any contact with the fluid, the valve passing through said spring chamber, the spring being disposed in said spring chamber around said valve.
Avantageusement, la soupape comporte un canal d'expulsion central reliant l'orifice de distribution de la soupape à une ouverture débouchant dans la chambre de dosage en position de distribution de la soupape, ladite ouverture étant isolée de ladite chambre de dosage lorsque la soupape n'est pas en position de distribution.Advantageously, the valve comprises a central expulsion channel connecting the dispensing orifice of the valve to an opening opening in the metering chamber in dispensing position of the valve, said opening being isolated from said metering chamber when the valve is not in distribution position.
Avantageusement, le corps de valve comporte une chambre de ressort, une chambre de dosage, et une chambre de remplissage, la chambre de ressort étant séparée de la chambre de dosage par une première paroi transversale, la chambre de dosage étant séparée de la chambre de remplissage par une seconde paroi transversale, et la chambre de remplissage étant séparée du réservoir par une troisième paroi transversale, ladite soupape coulissant à travers lesdites chambres de ressort, de dosage et de remplissage entre ses positions de repos et de remplissage, en traversant de manière étanche lesdites première, seconde et troisième parois transversales.Advantageously, the valve body comprises a spring chamber, a metering chamber, and a filling chamber, the spring chamber being separated from the metering chamber by a first transverse wall, the metering chamber being separated from the metering chamber. filling by a second transverse wall, and the filler chamber being separated from the reservoir by a third transverse wall, said valve sliding through said spring chambers, metering and filling between its resting and filling positions, passing through sealing said first, second and third transverse walls.
La présente invention a également pour objet un dispositif de distribution de produit fluide comportant une valve doseuse telle que décrite ci-dessus.The present invention also relates to a fluid dispenser device comprising a metering valve as described above.
D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement au cours de la description détaillée suivante d'un mode de réalisation particulier de celle-ci, faite en référence aux dessins joints donnés à titre d'exemples non limitatifs, et sur lesquels
- la
figure 1 est une vue schématique en section transversale d'une valve doseuse selon la présente invention, en position de repos de la valve, - la
figure 2 est une vue similaire à celle de lafigure 1 , dans une position intermédiaire de la valve, entre la position de repos et la position de distribution, et - la
figure 3 est une vue similaire à celles desfigures 1 et 2 , en position de distribution de la valve.
- the
figure 1 is a schematic cross-sectional view of a metering valve according to the present invention, in the rest position of the valve, - the
figure 2 is a view similar to that of thefigure 1 in an intermediate position of the valve, between the rest position and the dispensing position, and - the
figure 3 is a view similar to those ofFigures 1 and 2 , in dispensing position of the valve.
En référence aux figures, il est représenté une valve doseuse comportant un corps de valve 10. Cette valve est assemblée sur un réservoir (non représenté), qui contient du produit fluide, par exemple liquide ou pulvérulent, généralement associé à du gaz propulseur destiné à permettre la distribution du produit à travers ladite valve. Le corps de valve 10 peut être assemblé sur ledit réservoir (non représenté) au moyen d'une bague ou capsule de fixation, notamment une capsule de sertissage 5, avec de préférence interposition d'un joint de soupape 6 entre le corps de valve 10 et ladite capsule de sertissage 5, et d'un joint de col (non représenté), entre le col du réservoir (non représenté), et ladite capsule de sertissage 5. Dans l'exemple représenté sur les figures, le corps de valve 10 comporte un bord d'extrémité 7 plus épais destiné à être fixé dans ladite capsule de sertissage 5. Eventuellement, en particulier lorsque la valve est destinée à être utilisée en position inversée, comme c'est le cas dans l'exemple représenté sur les figures, le corps de valve 10 peut être associé à une bague de remplissage (non représentée), destinée à remplir au moins partiellement le volume mort entre le col du réservoir et la capsule de sertissage 5, et/ou à limiter le contact entre le produit fluide et le joint de soupape 6.Referring to the figures, there is shown a metering valve comprising a
Selon la présente invention, le corps de valve 10 comporte une chambre de dosage 11 destinée à contenir une dose de produit fluide, cette dose de produit étant distribuée à chaque actionnement de la valve. Selon la présente invention, cette chambre de dosage 11 est à pression atmosphérique, lorsque la valve est en position de repos. En d'autre mot, la chambre de dosage 11 est isolée du réservoir de produit fluide en position de repos de la valve, de sorte qu'aucune surpression n'est exercée sur les joints délimitant ladite chambre de dosage 11 pendant le stockage, et de sorte qu'il n'y a aucun risque que la dose de produit soit diminuée en raison d'un stockage prolongé, puisque pendant ce stockage, la chambre de dosage 11 est vide et ne contient pas de produit fluide. En effet, selon la présente invention, la chambre de dosage 11 ne se remplit qu'au moment où la soupape 20, qui coulisse dans le corps de valve 10, est déplacée de sa position de repos (représenté sur la
De préférence, la chambre de remplissage 12 est reliée au réservoir (non représenté) en position de repos de la valve. Par contre, dès que la soupape 20 est actionnée et qu'elle est donc déplacée axialement à l'intérieur du corps de valve, le passage 16 entre la chambre de remplissage 12 et le réservoir est fermé, isolant ainsi ladite chambre de remplissage 12 dudit réservoir. Avantageusement, le volume de la chambre de remplissage 12 correspond au volume de la chambre de dosage 11, de sorte que lorsque la soupape passe dans la position intermédiaire, la totalité de la chambre de remplissage 12 est vidée dans la chambre de dosage 11, à travers le canal de liaison 15.Preferably, the
De manière connue, la soupape 20 comporte un canal d'expulsion 21 axial débouchant dans un orifice de distribution 22, ledit canal d'expulsion 21 comportant un orifice d'entrée 23. Cet orifice d'entrée 23, généralement radial, est prévu pour déboucher dans la chambre de dosage 11 en position de distribution de la soupape. Ceci signifie que la dose de produit contenu dans la chambre de dosage 11 est expulsée à travers la soupape 20 lorsque celle-ci arrive en position de distribution, qui est représenté sur la
Avantageusement, le corps de valve 10 comporte également une chambre de ressort 13 dans laquelle est disposé le ressort 25 qui sollicite la soupape 20 vers sa position de repos. Avantageusement, ce ressort 25 est disposé hors de tout contact avec le produit fluide, comme cela est représenté sur les figures. Ceci est obtenu en ce que la chambre de ressort 13 est disposée dans le corps de valve 10 en étant séparée de manière étanche de la chambre de dosage 11, la soupape coulissant de manière étanche dans ladite chambre de ressort 13, et le ressort 25 étant disposé autour de ladite soupape 20 dans cette chambre de ressort 13. Avantageusement, la chambre de ressort 13 est séparée de la chambre de dosage 11 par une première paroi transversale 31, de préférence associée à un joint d'étanchéité contre lequel coulisse ladite soupape 20 de manière étanche. De même, ladite chambre de dosage 11 est séparée de manière étanche de la chambre de remplissage 12 par une seconde paroi transversale 32, également de préférence associée à un joint contre lequel ladite soupape 20 coulisse de manière étanche. Enfin, la chambre de remplissage 12 peut également être avantageusement séparée du réservoir (non représenté) par une troisième paroi transversale 33, également de préférence associée à un joint contre lequel ladite soupape 20 coulisse de manière étanche. Ainsi, la seule liaison entre le réservoir et la chambre de remplissage 12 est réalisée par le passage 16, qui est fermé dès que la soupape 20 n'est plus en position de repos. La seule liaison entre la chambre de remplissage 12 et la chambre de dosage 11 est réalisée au moyen du canal de liaison 15, ce canal de liaison n'étant ouvert que dans la position intermédiaire située entre les positions de repos et de distribution de la soupape 20. Enfin, la chambre de dosage 13 n'est jamais reliée ni à la chambre de dosage 11, ni à la chambre de remplissage 12, ni au réservoir, de sorte que le ressort 25 est complètement isolé de tout contact avec le produit fluide.Advantageously, the
Cette mise en oeuvre est particulièrement avantageuse, en ce qu'elle garantit d'une part que la chambre de dosage 11 est à pression atmosphérique en position de repos de la valve, ce qui est particulièrement avantageux notamment lorsque les temps d'utilisation entre deux actionnements de la valve sont relativement longs, et d'autre part que le ressort 25 n'est jamais en contact avec le produit fluide, ce qui évite tout risque d'altération du produit en raison du contact avec ce ressort, généralement réalisé en métal.This implementation is particularly advantageous, in that it guarantees firstly that the
Il est à noter que le ressort pourrait aussi être disposé en partie basse du corps de valve, par exemple dans la chambre de remplissage, pour limiter le nombre de joints. Dans ce cas toutefois, il serait en contact avec le produit fluide.It should be noted that the spring could also be arranged in the lower part of the valve body, for example in the filling chamber, to limit the number of joints. In this case, however, it would be in contact with the fluid product.
La présente invention permet donc de fournir une valve doseuse particulièrement fiable, qui garantit la reproductibilité parfaite et totale de la dose à chaque actionnement, tout en étant de construction simple et de fonctionnement fiable.The present invention therefore makes it possible to provide a particularly reliable metering valve, which guarantees perfect and total reproducibility of the dose at each actuation, while being of simple construction and reliable operation.
Bien que la présente invention ait été décrite en référence à un mode de réalisation particulier de celle-ci, il est entendu qu'elle n'est pas limitée au mode de réalisation représenté sur les dessins, mais qu'au contraire un homme du métier peut y apporter toutes modifications utiles, sans sortir du cadre de la présente invention, tel que défini par les revendications annexées.Although the present invention has been described with reference to a particular embodiment thereof, it is understood that it is not limited to the embodiment shown in the drawings, but that on the contrary a person skilled in the art can make any useful modifications, without departing from the scope of the present invention, as defined by the appended claims.
Claims (10)
- A metering valve for dispensing a fluid, said metering valve comprising a valve body (10) and a valve member (20) mounted to slide relative to said valve body (10) between a rest position and a dispensing position, said valve further comprising a metering chamber (11) serving to contain the metered quantity or "dose" of fluid discharged each time the valve is actuated, said metering valve being arranged such that, when it is in the rest position, said metering chamber (11) is at atmospheric pressure, characterized in that the valve comprises a filling chamber (12) connected firstly to a fluid reservoir and secondly to said metering chamber (11), the passageway (15) between the metering chamber (11) and the filling chamber (12) being closed when the valve is in the rest position and in the dispensing position, said passageway being open when the valve (20) moves between its rest position and its dispensing position.
- A valve according to claim 1, in which said filling chamber (12) is connected to said fluid reservoir when the valve is in the rest position, the passageway (16) between the filling chamber (12) and the reservoir being closed when the valve is not in the rest position.
- A valve according to claim 1 or claim 2, in which the metering chamber (11) fills when the valve member (20) moves from its rest position to its dispensing position.
- A valve according to any preceding claim, in which said valve member (20) is provided with a link channel (15) having an inlet (15a) and an outlet (15b) that is offset axially relative to said inlet (15a), said link channel (15) lying entirely within the metering chamber (11) in the rest position, lying entirely within the filling chamber (12) in the dispensing position, and connecting said metering chamber (11) to said filling chamber (12) when the valve member (20) is between its rest position and its dispensing position, said inlet (15a) then being disposed in the filling chamber (12), and said outlet (15b) being disposed in said metering chamber (11).
- A valve according to any preceding claim, in which the fluid contained in the metering chamber (11) is discharged when the valve member (20) reaches its dispensing position.
- A valve according to any preceding claim, in which a spring (25) urges the valve member (20) towards its rest position, said spring (25) being disposed out of any contact with said fluid.
- A valve according to claim 6, in which the valve body (10) further comprises a spring chamber (13) isolated from any contact with the fluid, the valve member (20) passing through said spring chamber (13), and the spring (25) being disposed in said spring chamber (13) around said valve member (20).
- A valve according to any preceding claim, in which the valve member (20) is provided with a central discharge channel (21) connecting the dispensing orifice (22) of the valve member (20) to an opening (23) opening that opens out into the metering chamber (11) when the valve member (20) is in the dispensing position, said opening (23) being isolated from said metering chamber (11) when the valve member (20) is not in the dispensing position.
- A valve according to any preceding claim, in which the valve body (10) comprises a spring chamber (13), a metering chamber (11), and a filling chamber (12), the spring chamber (13) being separated from the metering chamber (11) by a first transverse wall (31), the metering chamber (11) being separated from the filling chamber (12) by a second transverse wall (32), and the filling chamber (12) being separated from the reservoir by a third transverse wall (33), said valve member (20) sliding through said spring chamber (13), said metering chamber (11), and said filling chamber (12) between its rest position and its filling position, by passing in leaktight manner through said first, second, and third transverse walls (31, 32, 33).
- A fluid dispenser device characterized in that it includes a metering valve according to any preceding claim.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0305857A FR2854877B1 (en) | 2003-05-15 | 2003-05-15 | FLUID PRODUCT DISPENSING VALVE. |
PCT/FR2004/001134 WO2004101394A1 (en) | 2003-05-15 | 2004-05-10 | Metering valve for dispensing a fluid product |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1633657A1 EP1633657A1 (en) | 2006-03-15 |
EP1633657B1 true EP1633657B1 (en) | 2008-08-20 |
Family
ID=33306385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04742690A Expired - Lifetime EP1633657B1 (en) | 2003-05-15 | 2004-05-10 | Metering valve for dispensing a fluid product |
Country Status (7)
Country | Link |
---|---|
US (1) | US7040513B2 (en) |
EP (1) | EP1633657B1 (en) |
JP (1) | JP4557980B2 (en) |
CN (1) | CN100564192C (en) |
DE (1) | DE602004015979D1 (en) |
FR (1) | FR2854877B1 (en) |
WO (1) | WO2004101394A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE502007002344D1 (en) * | 2007-06-08 | 2010-01-28 | Mettler Toledo Ag | Dosing device for powdered or pasty substances |
CN102089027A (en) * | 2008-07-11 | 2011-06-08 | Map药物公司 | Containers for aerosol drug delivery |
FR2948645B1 (en) * | 2009-07-30 | 2015-06-26 | Valois Sas | FLUID PRODUCT DELIVERY VALVE |
GB0917731D0 (en) * | 2009-10-09 | 2009-11-25 | Univ Salford | Liquid dispensing apparatus |
FR2968283B1 (en) * | 2010-12-03 | 2013-01-04 | Valois Sas | VALVE OF DISTRIBUTION OF FLUID PRODUCT. |
US20120168460A1 (en) * | 2010-12-30 | 2012-07-05 | Boris Tolstykh | Reusable dispensing valve for pressurized canisters |
CN104627503B (en) * | 2014-08-07 | 2017-12-22 | 中山华方包装有限公司 | Taken amount device and medicine bottle, the feeding bottle using the taken amount device |
CA3062953A1 (en) * | 2016-04-27 | 2017-11-02 | Innovation Cooperative 3D, Llc | Adjustable dosing fluid dispenser for flexible fluid packages |
US20210207990A1 (en) * | 2018-05-29 | 2021-07-08 | Basf Coatings Gmbh | Container comprising a valve head for pneumatic dosing and dosing facility comprising such a container |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2980301A (en) * | 1958-09-02 | 1961-04-18 | Riker Laboratories Inc | Metering valve for aerosol container |
US3176890A (en) * | 1961-08-14 | 1965-04-06 | Potapenko Gennady | Pressurized dispenser with integral container seal |
US3269615A (en) * | 1964-05-27 | 1966-08-30 | Jr Royal T Ferry | Aerosol container with metering valve |
GB1201918A (en) * | 1966-12-21 | 1970-08-12 | Bespak Industries Ltd | Improvements in or relating to valves for pressurised dispensers |
US3547317A (en) * | 1968-07-15 | 1970-12-15 | Green Edward | Valve assembly for dispensing metered amounts of pressurized product |
US4506803A (en) * | 1982-08-09 | 1985-03-26 | Hoffmann-La Roche Inc. | Metered aerosol dispenser and method of using the dispenser |
-
2003
- 2003-05-15 FR FR0305857A patent/FR2854877B1/en not_active Expired - Lifetime
-
2004
- 2004-05-10 WO PCT/FR2004/001134 patent/WO2004101394A1/en active IP Right Grant
- 2004-05-10 EP EP04742690A patent/EP1633657B1/en not_active Expired - Lifetime
- 2004-05-10 JP JP2006530341A patent/JP4557980B2/en not_active Expired - Fee Related
- 2004-05-10 DE DE602004015979T patent/DE602004015979D1/en not_active Expired - Lifetime
- 2004-05-10 CN CNB2004800132679A patent/CN100564192C/en not_active Expired - Fee Related
- 2004-05-13 US US10/844,363 patent/US7040513B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2007533920A (en) | 2007-11-22 |
US20040226970A1 (en) | 2004-11-18 |
WO2004101394A1 (en) | 2004-11-25 |
DE602004015979D1 (en) | 2008-10-02 |
JP4557980B2 (en) | 2010-10-06 |
CN100564192C (en) | 2009-12-02 |
FR2854877B1 (en) | 2007-04-20 |
EP1633657A1 (en) | 2006-03-15 |
CN1791537A (en) | 2006-06-21 |
US7040513B2 (en) | 2006-05-09 |
FR2854877A1 (en) | 2004-11-19 |
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